Airtac PC Threaded Straight Connector PC603D-S
SUS304 stainless variant (-S)The AirTAC Airtac PC Threaded Straight Connector PC603D-S is a genuine male connector for push-in tube connection, rated 0 - 1.0 MPa (0 - 10 kgf/cm2) with a 1.5 MPa proof pressure.
- TypeMale connector
- SeriesPC
- Working pressure0 - 1.0 MPa (0 - 10 kgf/cm2)
- Proof pressure1.5 MPa
- Temperature-20 to +70 °C
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac PC Threaded Straight Connector PC603D-S
The PC603D-S is AirTAC's PC series male connector in its SUS304 stainless build: a straight one-touch fitting that joins Dia 6 mm soft nylon or polyurethane tubing to a 1/4in PT male thread. Push the tube into the collet until it bottoms out and the stainless spring gasket and chuck grip it under any vibration; press the release ring to free it again. On this SKU the body itself is machined from stainless steel 304 and the construction is copper-free, while the release button and chuck stay POM in black - the D suffix on a PC part changes the button colour only, since the body is stainless either way.
It runs the resin-line spec profile: 0 to 1.0 MPa working pressure, -750 mmHg vacuum, 1.5 MPa proof pressure and -20 to +70 C. Do not confuse it with the metal BPC family, which trades 0.1 MPa of working pressure for a 150 C ceiling - this part keeps the full 1.0 MPa. The 1/4in PT thread arrives with sealant already applied, so it seals straight into a tapped port without extra tape or compound.
Airtac PC Threaded Straight Connector PC603D-S Technical Specifications
| Model | Airtac PC Threaded Straight Connector PC603D-S |
|---|---|
| Type | Male connector |
| Series | PC |
| Connection | Push-in one-touch |
| Body material | Stainless steel 304 (-S variant) |
| Working pressure | 0 - 1.0 MPa (0 - 10 kgf/cm2) |
|---|---|
| Negative pressure | -750 mmHg (10 Torr) |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Applicable tubing | Soft nylon or polyurethane tube |
| Thread standard | PT (Rc tapered) unless the code says otherwise |
POM release button and chuck, aluminium-alloy guide, stainless spring gasket, NBR O-ring; body brass or PBT depending on the part. Stainless (-S): SUS304 in place of brass - a solid SUS304 body on the PC and POC straight connectors, and a PBT body with a SUS304 stud on the elbow, tee and branch shapes. Working pressure, proof pressure and temperature are unchanged from the standard version. AirTAC publishes flow as a characteristic curve rather than a single figure, so no L/min value is listed.
Model Code: Airtac PC Threaded Straight Connector PC603D-S
| PC | Male connector. |
|---|---|
| 4 / 6 / 8 / 10 / 12 | Tube outside diameter in mm (3.2 mm exists on the mini series). |
| M5 / 01 / 02 / 03 / 04 | Thread: M5x0.8, 1/8", 1/4", 3/8", 1/2" (M3 on the mini series). |
| D | Black. Blank = grey. |
| -S | Stainless-steel body. |
Fitting & Sealing Notes
- check Cut the tube square and clean before pushing it home, or the seal will leak.
- check Push until it stops, then pull back to check the chuck has gripped.
- check To release, press the collet ring fully in and pull the tube out.
- check Threaded parts arrive with sealant on the thread; M5 sizes use a sealing gasket.
- check Match the tube OD exactly - a 6 mm fitting will not hold 1/4" tube.
Where the Airtac PC Threaded Straight Connector PC603D-S Is Used
Plating-line fixture actuation
Copper-free stainless body suits clamp cylinders above electroplating or etch tanks, where brass fittings shed copper into the bath mist and corrode quickly.
Marine hatch and deck cylinder
A Dia 6 feed to a small hatch-lift or deck-gate cylinder in salt-laden air, where the SUS304 body resists the pitting that kills plated brass connectors.
Wash-down packaging end-of-arm
Dia 6 drop from a manifold to a gripper or reject cylinder on a food packaging machine hosed down each shift, without the rust bloom of a steel-banded brass joint.
Is the Airtac PC Threaded Straight Connector PC603D-S the Right Part?
On the 1/4in thread rung of the PC ladder you can step down to Dia 4 (PC402-S) for light pilot and sensor lines, or up to Dia 8 (PC802-S) when the actuator port wants more bore. Moving from Dia 6 to Dia 8 lowers restriction to the cylinder; dropping to Dia 4 trims air demand on small pilots. Tube OD must match the collet exactly - a Dia 6 fitting will not seal on 1/4in (6.35 mm) tube, which is a near miss that leaks. Match the 1/4in thread to the port tap; if the machine has 1/8in ports, PC601-S is the same connector one thread size smaller.
Quick checklist
- ✓ Tube outside diameter matches exactly
- ✓ Thread size and standard match the port
- ✓ Working pressure within 0 - 1.0 MPa (0 - 10 kgf/cm2)
- ✓ Temperature within -20 to +70 °C
Airtac PC Threaded Straight Connector PC603D-S FAQ
Working pressure 0 to 1.0 MPa (0 to 10 kgf/cm2), negative pressure -750 mmHg (10 Torr), proof pressure 1.5 MPa, temperature -20 to +70 C. It takes Dia 6 mm soft nylon or polyurethane tube on a 1/4in PT male thread. The body is stainless steel 304 and copper-free; ratings are identical to the standard grey PC603.
No. The dimension tables and the pressure, vacuum and temperature figures match the standard part exactly - only the body material moves to SUS304 and the construction becomes copper-free. AirTAC publishes no separate certification, surface-finish or corrosion-class data for the stainless line, so the case for it is straightforward corrosion resistance and copper-free plumbing, not a tested rating. The push-in action, release ring and pre-sealed 1/4in PT thread all behave the same.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard parts are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC One-Touch Fittings
Request a Quote for Airtac PC Threaded Straight Connector PC603D-S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.